Ordinary or stem oak (Quercus robur L.) is a large frosty and drought-resistant, light-loving tree from the beech family. Widely distributed in forest and forest-steppe zones of the entire northern hemisphere, with the exception of the Far North. It is found everywhere in Ukraine, except in the extreme south. Oak leaves and bark can be used medicinally.
Common or branched oak, description, use of bark, oak leaves, galls and acorns in the treatment of diseases in the field.
For medicinal purposes, they use young bark (in the old one, the concentration of tannins decreases over the years) and oak leaves, much less often galls are nut-shaped growths formed by the larvae of some insects on the leaves of this tree. Oak bark is harvested in spring from young trunks and large branches during sap flow, leaves in spring and summer, galls in late summer. Ripe acorns are harvested in the fall, at the end of September, usually after the first frost.
Drying of all raw materials is carried out in the shade in the wind (draft) or in a well-ventilated room, until the crust breaks when bent. Then stored in paper (tissue) packaging or in wooden containers, bark up to 5 years, dry leaves – up to 1 year.
Oak bark contains tannins (up to 20%), tannins, organic acids, quercetin, flobafen, tarry and pectin substances (up to 6%), sugars, proteins, starch, flavonoids and minerals. The leaves contain pigments, flavonoids, tannins, pentosans, ascorbic acid. In acorns – starch (up to 40%), proteins, carbohydrates, fatty oils, tannins. In sheet galls – up to 30% of tannins.
poisoning with fungi, alkaloids, salts of heavy metals.
Decoctions of inast from bark and oak leaves are used for various diseases of the gastrointestinal tract, gynecological diseases, bleeding, liver and spleen diseases, purulent skin diseases, frostbite, burns, excessive sweating of the feet. In addition, the external use of oak leaves promotes the rapid healing of ulcers, wounds and cuts. Decoctions and infusions from oak bark should be filtered immediately after boiling, not expecting them to cool, since they quickly grow turbid even at the slightest decrease in the temperature of the mixture.
|Infusion||1 tablespoon (10 g.) Spoon of fresh or dry crushed bark 0.25 liters. water.||Pour boiling water, insist 4 hours, strain.||100 ml each. 3 times a day before meals with diarrhea, dysentery, gastrointestinal bleeding. For rinsing with infections of the mouth and throat, with gum disease.|
|Infusion||2 tablespoons (20 g) of 0.25 l fresh or dry crushed bark water.||Pour boiling water, keep on low heat for 10 minutes, strain, bring the volume of boiled water to 250 ml.||2 tablespoons 3 times a day for poisoning by heavy metals, alkaloids, mushrooms, bleached, dope, food poisoning.|
|Infusion||1 tablespoon (10 g) spoon of fresh or dry ground galls per 0.5 l. water.||Pour boiling water, boil over low heat for 15 minutes, strain.||50 ml each. 4 times a day before meals with diarrhea, dysentery, bleeding. For washing wounds and lotions on eczema, burns, purulent wounds, lichen, infected ulcers, frost-bitten places.|
|Decoction||2 tablespoons (20 g) of 0.25 l fresh or dry crushed bark water.||Pour boiling water, boil for 20 minutes, strain, bring the volume of boiled water to 250 ml.||For washing wounds and lotions on eczema, burns, purulent wounds, lichen, infected ulcers, frostbite, as a prophylactic for severe sweating feet.|
|Oak Bark Tincture||5 tablespoons (50 g) tablespoons of fresh or dry crushed bark per 1 liter. 70% alcohol.||Insist for 7 days in a dark and warm place, strain.||1 tablespoon 3 times a day, as an anti-inflammatory and strengthening agent.|
|Oak Bark Tincture||4 tablespoons (40 g) tablespoons of fresh or dry crushed bark per 0.5 l. 40% alcohol or vodka.||Insist 30 days in a dark and warm place, strain.||1 tablespoon on an empty stomach 3 times a day with diarrhea. Washing purulent wounds and grinding with frostbite diluted with water 1: 5.|
Oak, its acorns and leaves in cooking.
From acorns, after removing tannins from them, you can boil porridge, bake cakes, prepare a coffee substitute: 1 teaspoon (5 g) spoon of fried acorns to redness and crushed acorns 0.25 l. water. Brew like coffee. 1 glass per day, as a preventive and strengthening agent.
Fresh oak leaves are a useful and necessary spicy and aromatic additive to pickles and marinades, gives strength, making canned cucumbers and tomatoes hard and crunchy.
Tea from oak leaves: 1 teaspoon (5 g) a spoon of fresh or dry shredded leaves per 0.25 liters. water. Pour boiling water, insist 20 minutes, strain. As a prophylactic and strengthening agent for malnutrition in extreme or emergency conditions.
Contraindications when using infusions and decoctions of oak.
Intestinal diseases with persistent constipation, individual intolerance. In case of an overdose, the use of infusion and decoction can cause vomiting, pregnant women and children (up to 12 years old) can be taken orally in small doses and only in case of emergency.